V. Vikberg & J. Itämies 1999: Buckthorn (Hippophae rhamnoides L., Elaeagnaceae), a new important food plant for the larva of Tenthredo vespa Retzius in Finland (Hymenoptera, Tenthredinidae). - Entomologica Fennica 10: 201-208.
In Finland, the distribution of Tenthredo vespa Retzius corresponds well to that of the wild buckthorn (Hippophae rhamnoides L.). The larvae of this sawfly were shown to feed on the leaves of the plant in an ovipositing experiment and in field studies on the phenology of larvae in buckthorn bushes. It seems that the buckthorn is the main food plant for the larva along the shore of the Gulf of Bothnia. The larva can also feed on cultivated buckthorn, as it appeared in St. Petersburg, Russia.